Diaphragm materials for diaphragm pumps
The diaphragm materials of diaphragm pumps mainly include the following:
Rubber:
Features: Good corrosion resistance and wear resistance.
Common types: Neoprene, butyl rubber, fluororubber, etc.
Application scenarios: Suitable for conveying medium and low concentration acid and alkali liquids, abrasive media, and food, etc.
Polytetrafluoroethylene (PTFE):
Features: Excellent corrosion resistance, able to withstand extreme high temperatures and strong acid and alkali media.
Notes: Due to its poor elasticity, it is easy to deform due to force, and is not suitable for conveying media with large particles. In addition, the price of polytetrafluoroethylene diaphragms is relatively high.
Application scenarios: Suitable for conveying highly corrosive media and high-temperature media.
Polyester:
Features: Low price and high strength.
Notes: Poor corrosion resistance, not suitable for conveying strong acid and alkali media and high-temperature media.
Application scenarios: Suitable for conveying medium concentration acid and alkali liquids, food, etc.
In addition to the above three main materials, diaphragm pumps may also use other materials, such as polytetrafluoroethylene, to meet the needs of different users and the requirements of specific applications. When selecting diaphragm materials, it is necessary to make comprehensive considerations based on specific process conditions and the characteristics of the conveying medium to ensure the performance and life of the diaphragm pump.
